Update airgradient device sw_version when changed (#126902)

tests/components/airgradient/test_init.py

@@ -1,7 +1,9 @@
 """Tests for the AirGradient integration."""
 
+from datetime import timedelta
 from unittest.mock import AsyncMock
 
+from freezegun.api import FrozenDateTimeFactory
 from syrupy import SnapshotAssertion
 
 from homeassistant.components.airgradient.const import DOMAIN
@@ -10,7 +12,7 @@ from homeassistant.helpers import device_registry as dr
 
 from . import setup_integration
 
-from tests.common import MockConfigEntry
+from tests.common import MockConfigEntry, async_fire_time_changed
 
 
 async def test_device_info(
@@ -27,3 +29,28 @@ async def test_device_info(
     )
     assert device_entry is not None
     assert device_entry == snapshot
+
+
+async def test_new_firmware_version(
+    hass: HomeAssistant,
+    mock_airgradient_client: AsyncMock,
+    mock_config_entry: MockConfigEntry,
+    device_registry: dr.DeviceRegistry,
+    freezer: FrozenDateTimeFactory,
+) -> None:
+    """Test device registry integration."""
+    await setup_integration(hass, mock_config_entry)
+    device_entry = device_registry.async_get_device(
+        identifiers={(DOMAIN, mock_config_entry.unique_id)}
+    )
+    assert device_entry is not None
+    assert device_entry.sw_version == "3.1.1"
+    mock_airgradient_client.get_current_measures.return_value.firmware_version = "3.1.2"
+    freezer.tick(timedelta(minutes=1))
+    async_fire_time_changed(hass)
+    await hass.async_block_till_done()
+    device_entry = device_registry.async_get_device(
+        identifiers={(DOMAIN, mock_config_entry.unique_id)}
+    )
+    assert device_entry is not None
+    assert device_entry.sw_version == "3.1.2"